Antenna



FIG. 1 is a front and left side perspective view of an antenna showing our new design;

FIG. 2 is a rear and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a rear elevational view thereof, looking along line 6 of FIG. 3. 

The ornamental design for an antenna, as shown and described. 